WiFi 7 (Wi-Fi 7) bụ ọkọlọtọ Wi-Fi ọgbọ na-abịa. N'ikwekọ na IEEE 802.11, a ga-ewepụta ọkọlọtọ IEEE 802.11be-Elu Oke (EHT) edegharịrị ọhụrụ.
Wi-Fi 7 na-ewebata teknụzụ dị ka bandwit 320MHz, 4096-QAM, Multi-RU, ọrụ ọtụtụ njikọ, nkwalite MU-MIMO, na nkwado multi-AP na ndabere nke Wi-Fi 6, na-eme ka Wi-Fi 7 dịkwuo ike karị. karịa Wi-Fi 7. N'ihi na Wi-Fi 6 ga-enye ọnụego mbufe data dị elu na obere latency. A na-atụ anya Wi-Fi 7 ga-akwado ntinye ihe ruru 30Gbps, ihe dị ka okpukpu atọ karịa nke Wi-Fi 6.
Atụmatụ ọhụrụ Wi-Fi 7 na-akwado
- Nkwado bandwit kacha 320MHz
- Kwado usoro Multi-RU
- Webata teknụzụ modulation 4096-QAM dị elu
- Webata usoro njikọ ọtụtụ njikọ Multi-Link
- Kwado iyi data ndị ọzọ, nkwalite ọrụ MIMO
- Kwado nhazi oge imekọ ihe ọnụ n'etiti ọtụtụ AP
- Ihe ngosi ngwa nke Wi-Fi 7
1. Gịnị kpatara Wi-Fi 7?
Site na mmepe nke teknụzụ WLAN, ezinụlọ na ụlọ ọrụ na-adabere na Wi-Fi dị ka ụzọ bụ isi isi nweta netwọkụ ahụ. N'ime afọ ndị na-adịbeghị anya, ngwa ọhụrụ nwere nnukwu ntinye na igbu oge chọrọ, dị ka vidiyo 4K na 8K (ọnụego nnyefe nwere ike iru 20Gbps), VR / AR, egwuregwu (ihe a chọrọ igbu oge bụ ihe na-erughị 5ms), ụlọ ọrụ dịpụrụ adịpụ, na nkwurịta okwu vidiyo n'ịntanetị. na igwe ojii computing, wdg. Ọ bụ ezie na ọhụrụ ntọhapụ nke Wi-Fi 6 lekwasịrị anya ahụmahụ onye ọrụ na elu-njupụta ndapụta, ọ ka nwere ike zuru ezu izute n'elu-e kwuru elu chọrọ maka. throughput na latency. (Nnọọ ntị na akaụntụ gọọmentị: engineer netwọk Aaron)
Iji mezuo nke a, nzukọ ọkọlọtọ IEEE 802.11 na-achọ ịhapụ ọkọlọtọ IEEE 802.11be EHT ọhụrụ edegharịrị, ya bụ Wi-Fi 7.
2. Oge mwepụta nke Wi-Fi 7
E hiwere otu ndị ọrụ IEEE 802.11be EHT na Mee 2019, na mmepe nke 802.11be (Wi-Fi 7) ka na-aga n'ihu. A ga-ahapụ ọkọlọtọ protocol dum na Mwepụta abụọ, a na-atụkwa anya ntọhapụ1 ịhapụ ụdị nke mbụ na 2021 Draft Draft1.0 ka a ga-ahapụ ọkọlọtọ na njedebe nke 2022; A na-atụ anya na mwepụta2 ga-amalite na mbido 2022 wee mezue ntọhapụ ọkọlọtọ na njedebe nke 2024.
3. Wi-Fi 7 vs Wi-Fi 6
Dabere na ọkọlọtọ Wi-Fi 6, Wi-Fi 7 na-ewebata ọtụtụ teknụzụ ọhụrụ, nke egosipụtara na:
4. Akụkụ ọhụrụ nke Wi-Fi 7 kwadoro
Ebumnobi nke Wi-Fi 7 protocol bụ ịbawanye ọnụego ntinye nke netwọkụ WLAN gaa na 30Gbps ma nye ohere ịnweta obere ala. Iji mezuo ebumnobi a, usoro ahụ dum emeela mgbanwe kwekọrọ na oyi akwa PHY na oyi akwa MAC. E jiri ya tụnyere Wi-Fi 6 protocol, mgbanwe teknụzụ bụ isi nke Wi-Fi 7 protocol wetara bụ ndị a:
Nkwado bandwit kacha 320MHz
Ụdịdị dị iche iche na-enweghị ikike na eriri ugboro 2.4GHz na 5GHz nwere oke yana juputara. Mgbe Wi-Fi dị ugbu a na-arụ ngwa na-apụta dị ka VR/AR, ọ ga-enwerịrị nsogbu nke QoS dị ala. Iji nweta ihe mgbaru ọsọ nke ntinye kachasị nke na-erughị 30Gbps, Wi-Fi 7 ga-aga n'ihu na-ewebata bandwit 6GHz ma tinye ụdị bandwidth ọhụrụ, gụnyere 240MHz na-aga n'ihu, 160 + 80MHz na-aga n'ihu, na-aga n'ihu 320 MHz na ndị na-abụghị. -160+160MHz na-aga n'ihu. (Nnọọ ntị na akaụntụ gọọmentị: engineer netwọk Aaron)
Nkwado Multi-RU Mechanism
Na Wi-Fi 6, onye ọrụ ọ bụla nwere ike izipu ma ọ bụ nata okpokolo agba na RU akọwapụtara nke ọma, nke na-egbochi oke mgbanwe nke nhazi usoro akụrụngwa. Iji dozie nsogbu a ma nwekwuo arụmọrụ ụdịdị dị iche iche, Wi-Fi 7 na-akọwapụta usoro na-enye ohere ka ekenye ọtụtụ RU maka otu onye ọrụ. N'ezie, iji mee ka mgbagwoju anya nke mmejuputa ya na iji ihe dị iche iche mee ihe, usoro ahụ emeela ụfọdụ ihe mgbochi na nchikota nke RU, ya bụ: obere RU (RU obere karịa 242-Tone) nwere ike jikọta ya. na obere RU, na nnukwu RU (RU nke ukwuu ma ọ bụ nhata 242-Tone) nwere ike jikọta ya na nnukwu RU, na A naghị ekwe ka agwakọta obere RU na obere RU.
Webata teknụzụ modulation 4096-QAM dị elu
The kasị elu modulation usoro nkeWi-Fi 6bụ 1024-QAM, nke akara ngosi na-ebu 10 bits. Iji nwetakwuo ọnụego, Wi-Fi 7 ga-ewebata 4096-QAM, nke mere na akara ngosi na-ebu 12 bits. N'okpuru otu ntinye koodu, Wi-Fi 7's 4096-QAM nwere ike nweta mmụba ọnụego 20% tụnyere Wi-Fi 6's 1024-QAM. (Nnọọ ntị na akaụntụ gọọmentị: engineer netwọk Aaron)
Webata usoro njikọ ọtụtụ njikọ Multi-Link
Iji nweta ọrụ nke ọma nke akụrụngwa ụdịdị dị iche iche dị, ọ dị mkpa ngwa ngwa guzobe njikwa ụdịdị ọhụrụ, nhazi na usoro nnyefe na 2.4 GHz, 5 GHz na 6 GHz. Ndị otu na-arụ ọrụ kọwapụtara teknụzụ metụtara mkpokọta njikọ njikọ, tumadi gụnyere ihe owuwu MAC nke mkpokọta njikọ njikọ agbakwunyere, ịnweta ọwa njikọ ọtụtụ, nnyefe njikọ na teknụzụ ndị ọzọ metụtara ya.
Kwado iyi data ndị ọzọ, nkwalite ọrụ MIMO
Na Wi-Fi 7, ọnụ ọgụgụ nke iyi ohere amụbaala site na 8 ruo 16 na Wi-Fi 6, nke usoro iwu nwere ike karịa okpukpu abụọ nke nnyefe anụ ahụ. Ịkwado ọtụtụ iyi data ga-ewetakwa ihe ndị ọzọ dị ike-kesa MIMO, nke pụtara na 16 data iyi nwere ike inye ọ bụghị site na otu ebe ohere, ma site na otutu ohere ohere n'otu oge, nke pụtara na otutu AP kwesịrị imekọ ihe ọnụ. arụ ọrụ.
Kwado nhazi oge imekọ ihe ọnụ n'etiti ọtụtụ AP
Ugbu a, n'ime usoro nke 802.11 protocol, ọ bụghị n'ezie imekọ ihe ọnụ n'etiti AP. Ọrụ WLAN a na-ahụkarị dị ka nlegharị anya akpaka na ịgagharị smart bụ njirimara akọwapụtara nke ndị na-ere ahịa. Ebumnuche nke imekọ ihe ọnụ n'etiti AP bụ naanị ịkwalite nhọrọ ọwa, mezie ibu n'etiti APs, wdg, iji nweta ebumnuche nke itinye n'ọrụ nke ọma na oke nha anya nke akụrụngwa ugboro redio. Usoro nhazi nhazi n'etiti otutu AP na Wi-Fi 7, gụnyere nhazi nhazi n'etiti sel na mpaghara oge na mpaghara ugboro, nhazi nnyonye anya n'etiti sel, na nkesa MIMO, nwere ike belata ndabichi n'etiti AP nke ọma, na-emeziwanye ojiji nke ikuku ikuku.
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Enwere ọtụtụ ụzọ isi hazie nhazi oge n'etiti ọtụtụ AP, gụnyere C-OFDMA (Coordinated Orthogonal Frequency-Division Multiple Access), CSR (Coordinated Spatial Reuse), CBF (Coordinated Beamforming), na JXT (Njekọrịta Nkwekọrịta).
5. Ngwa ndapụta nke Wi-Fi 7
Atụmatụ ọhụrụ nke Wi-Fi 7 webatara ga-abawanye ọnụego nnyefe data ma nye obere latency, uru ndị a ga-enyere aka karịa ngwa ndị na-apụta, dị ka ndị a:
- Vidiyo iyi
- Mgbakọ vidiyo/olu
- Egwuregwu ikuku ikuku
- Mmekọrịta oge
- Mgbakọ igwe ojii/Edge
- Ụlọ ọrụ ịntanetị nke ihe
- Immersive AR/VR
- telemedicine mmekọrịta
Oge nzipu: Feb-20-2023